This massive stone and steel monument remembers a century-old battle that cost thousands of lives and nearly destroyed the city.

Said to be the only museum in the world dedicated to the most classic of all blooms, the rose.

A gigantic statue of a Russian soldier watches over the ancient city of Plovdiv, a prominent reminder of the Soviet period in Bulgaria.

This fresco inside a Serbian cave church has been a source of disagreement.

A plaque and memorabilia collection mark where A&W got its start.

These medicine cabinet staples are part of the museum's collection of everyday objects.

Alexander Hamilton’s creation caused quite a bit of controversy.

This beloved marketplace mascot poops money and grants good luck.

The world's third-largest crystal sphere has sat in the Penn Museum since 1927 with the exception of one outlandish theft.

Yo, Adrian!

A layered tribute to the work of mosaicist Isaiah Zagar.

One of the largest Roman settlements in Portugal.

The corpse bride of Portugal.

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

This eccentrically decorated palace is replete with grottoes, fountains, tunnels, and caves.

This unreal Portuguese palace looks as though it's made from a pile of different castles.

Elaborately carved to showcase the glorious wealth that the age of exploration brought to the Portuguese empire.

A 16th century chapel decorated with bones, skulls, and entire bodies hanging from the wall.

The last bastion of Roman presence north of the Alps looms over a German town.

Tiny castle in the middle of the Rhine made you pay to pass.

A memorial for a young woman and her ghost, which are claimed to have caused countless deathly shipwrecks.

This medieval castle overlooking the Elzbach river looks just like it did hundreds of years ago.

France's most famous cemetery, with some of its most curious tombs.